Field and Computational Studies of Steel Trapezoidal Box Girder Bridges

Helwig, Todd A.; Fan, Zhanfei; University of Houston

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ROSA P serves as an archival repository of USDOT-published products including scientific findings, journal articles, guidelines, recommendations, or other information authored or co-authored by USDOT or funded partners. As a repository, ROSA P retains documents in their original published format to ensure public access to scientific information.

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Field and Computational Studies of Steel Trapezoidal Box Girder Bridges

2000-08-20
By Helwig, Todd A. ; Fan, Zhanfei

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English

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Details:

Creators:

Helwig, Todd A. ; Fan, Zhanfei

Helwig, Todd A. ; Fan, Zhanfei Less -
Corporate Creators:

University of Houston
Corporate Contributors:

Texas. Dept. of Transportation. Research and Technology Transfer Section ; United States. Department of Transportation. Federal Highway Administration

Texas. Dept. of Transportation. Research and Technology Transfer Section ; United States. Department of Transportation. Federal Highway Administration Less -
Subject/TRT Terms:

[+]

Bracing Curved Bridges Field Studies Finite Element Method Girder Bridges Steel Bridges
Publication/ Report Number:

1395-3
Resource Type:

Tech Report
Geographical Coverage:

Texas ; United States

Texas ; United States Less -
Edition:

Interim
Corporate Publisher:

University of Houston
Abstract:

Trapezoidal steel box girders are seeing increased use in the state of Texas as well as throughout the United States. In addition to a number of serviceability and aesthetic advantages for trapezoidal box girders, the large torsional stiffness of the closed box section is also a major structural advantage, particularly for curved girders. Curved bridges are essential components of the highway system, particularly for efficient transfer of traffic between highway interchanges in urban environments. Although the composite box in the completed bridge has a large torsional stiffness, the open steel section requires a number of internal and external bracing systems during transport, erection, and casting of the concrete deck. This report documents results from field and computational studies on trapezoidal box girders. Field studies were conducted on a three-span continuous curved box girder bridge. More than eighty strain gages were applied to the girder cross-section and the top flange lateral truss prior to girder erection. Stresses in the girder and bracing members were monitored during erection, construction, and subsequent live loading. The construction of the box girder bridge was simulated with a three-dimensional FEA model of the quasi-closed steel section. Results from the field studies were used to study the girder behavior during construction and also the interaction of adjacent girders during live loading.
Format:

PDF
Funding:

0-1395
Collection(s):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha-512:0f6719b500f9df904cdc82c5f5081b12f195a72dfb9cd9a3fd73ba336ba75a7e4a6dbba4ae3384377a7c40e790788e96df8a49a78ccbb25c2c9ddd3333b098da
Download URL:

https://rosap.ntl.bts.gov/view/dot/82705/dot_82705_DS1.pdf
File Type:

[PDF-9.75 MB]